SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2021-24853

The QR Redirector WordPress plugin before 1.6 does not have capability and CSRF checks when saving bulk QR Redirector settings via the qr_save_bulk AJAX action, which could allow any authenticated user, such as subscriber to change the redirect response…

MEDIUM 4.3EPSS 0.45%

Does this matter?

Lower severity and a low EPSS score (0.45%). Track it; it rarely justifies an emergency change on its own.

Description

The QR Redirector WordPress plugin before 1.6 does not have capability and CSRF checks when saving bulk QR Redirector settings via the qr_save_bulk AJAX action, which could allow any authenticated user, such as subscriber to change the redirect response status code of arbitrary QR Redirects

CVSS 3.1
4.3 MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
EPSS
0.45% probability · 39th percentile
Public exploits
None in Exploit-DB
CISA KEV
Not listed
Weakness
CWE-284, CWE-352
Affected
qr redirector project/qr redirector
Source
contact@wpscan.com
EPSS trend
0%3%5%26 October 2026: 0.45%26 October 202626 October 2026

EPSS 0.4% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.